| Public KK|
11.54 trillion JPY (2016)
Hiroo Unoura (Jun 2012–)
| TYO: 9432
TOPIX Core 30 Component|
August 1, 1952 (1952-08-01) (as government monopoly)
April 1, 1985 (1985-04-01) (Private Company)
Hiroo Unoura, President & CEO Satoshi Miura, Chairman
Fixed-line and mobile telephony, broadband and fixed-line internet services, digital television, IT and network services
9432 (TYO) JP¥ 4,959 +29.00 (+0.59%)28 Mar, 11:30 AM GMT+9 - Disclaimer
Chiyoda, Tokyo, Tokyo, Japan
NTT DoCoMo, NTT Communications, NTT Plala
The Nippon Telegraph and Telephone Corporation (日本電信電話株式会社, Nippon Denshin Denwa Kabushiki-gaisha), commonly known as NTT, is a Japanese telecommunications company headquartered in Tokyo, Japan. Ranked 65th in Fortune Global 500, NTT is the third largest telecommunications company in the world in terms of revenue.
The company is incorporated pursuant to the NTT Law (Law Concerning Nippon Telegraph and Telephone Corporation, Etc.). The purpose of the company defined by the Law is to own all the shares issued by Nippon Telegraph and Telephone East Corporation (NTT East) and Nippon Telegraph and Telephone West Corporation (NTT West) and to ensure proper and stable provision of telecommunications services all over Japan including remote rural areas by these companies as well as to conduct research relating to the telecommunications technologies that will form the foundation for telecommunications.
While NTT is listed on Tokyo, Osaka, New York, and London stock exchanges, the Japanese government still owns roughly one-third of NTT's shares, regulated by the NTT Law.
Nippon Telegraph and Telephone Wikipedia
Established as a monopoly government-owned corporation in 1952, Nippon Telegraph and Telephone Public Corporation (日本電信電話公社, Nippon Denshin Denwa Kōsha) was privatized in 1985 to encourage competition in the telecom market. In 1987, NTT made the largest stock offering to date, at US$36.8 billion.
Because NTT owns most of the last mile (FTTC or FTTB/FTTH), it enjoys oligopolistic control over land lines in Japan. In order to weaken NTT, the company was divided into a holding company (NTT) and three telecom companies (NTT East, NTT West, and NTT Communications) in 1999. The NTT Law regulating NTT East and West requires them to serve only short distance communications and obligates them to maintain telephone service all over the country. They are also obligated to lease their unused optical fiber (dark fiber) to other carriers at regulated rates. NTT Communications is not regulated by the NTT Law.
In July 2010, NTT and South African IT company Dimension Data Holdings announced an agreement of a cash offer from NTT for Dimension Data's entire issued share capital, in £2.12bn ($3.24bn) deal.
In late 2010, NTT's Japan-to-US transpacific network reached 400 Gbit/s. In August 2011, its network capacity was expanded to 500 Gbit/s.1952 Nippon Telegraph and Telephone Public Corporation established
1979 INS Concept announced
1985 Nippon Telegraph and Telephone Corporation（NTT） incorporated as a private company
1987 NTT listed on the First Section of the Tokyo Stock Exchange
1988 NTT DATA Corporation started operations
1990 VI&P Concept announced
1992 NTT Mobile Communications Network, Inc.（presently NTT DOCOMO） started operations
1994 Basic Concept for the Coming Multimedia Age announced
1995 NTT DATA listed on the Second Section of the Tokyo Stock Exchange
1996 21st Century R&D Vision announced
1996 NTT DATA listed on the First Section of the Tokyo Stock Exchange
1997 Digitization of communications network in Japan completed
1998 Global Information Sharing Concept announced
1998 NTT DOCOMO listed on the First Section of the Tokyo Stock Exchange
1999 NTT's operations reorganized into a holding-company structure: businesses transferred to three new wholly owned subsidiaries (NTT East, NTT West, and NTT Communications)
2002 prefecture-based subsidiaries of NTT East and NTT West started operations
2002 "Vision for a New Optical Generation" announced
2004 NTT URBAN DEVELOPMENT CORPORATION listed on the First Section of the Tokyo Stock Exchange
2004 "NTT Group's Medium-Term Management Strategy" announced
2008 announcement of a new Medium-Term Management Strategy: "Road to Service Creation Business Group"
NTT Group consists of the following major companies, divided into five segments. NTT East, NTT West, NTT Communications, NTT DoCoMo, and NTT Data are most major subsidiaries. NTT DoCoMo and NTT Data are listed on the stock markets.NTT East (Tokyo)
NTT West (Osaka)
On July 28, 2011, NTT America announced that it will use Bloom fuel cells at one of its data centers. It will power those Bloom fuel cells with biogas instead of natural gas to be more environmental-friendly.
NTT Com Security (formerly Integralis)
Service innovation Laboratory Group
Service evolution Laboratories
Media intelligence Laboratories (Yokosuka)
Software innovation center (Yokosuka)
Secure Platform Laboratories
Information Network Laboratory Group
Network technology Laboratories (Musashino)
Network Service Systems Laboratories (Musashino)
Access Network Service Systems Laboratories (Tsukuba and Yokosuka)
Energy and Environment Systems Laboratories (Atsugi)
Science and Core Technology Laboratory Group
Network Innovation Laboratories (Yokosuka)
Microsystem Integration Laboratories (Atsugi)
Photonics Laboratories (Atsugi)
Communication Science Laboratories (Keihanna)
Basic Research Laboratories (Atsugi)
Omiya Ardija and Roasso Kumamoto (Japanese football clubs formerly affiliated with NTT)
Hitotsuyama Team (Super GT teams affiliated with NTT Docomo)
Tony Kanaan in the IndyCar Series